The treatment method of Red Spider of Chrysanthemum morifolium

Red spider is the natural enemy of many plants, and the harm to melon leaf chrysanthemum is also very serious. Because melon leaf chrysanthemum is a flower plant cultivated in greenhouse, so the environment is very favorable for red spider. So how to deal with the occurrence of red spiders in melon-leaf chrysanthemum?

Chrysanthemum morifolium

The harm of red spiders to melon and leaf chrysanthemum began in March, when the temperature in the greenhouse was dry. After overwintering, the female adults begin to feed and lay eggs, and they usually do harm around the main veins on the back of the leaves. The small white spots with loss of green can be seen on the front of the injured leaves at first, then turn red gradually, and the screen appears on the back of the leaves, and the injured leaves will eventually fall off. The earliest prevention should be in winter, to ensure that the surrounding environment is clean, timely removal of weeds and fallen leaves, inspection of basin soil, elimination of overwintering insect sources. In the pest occurrence period, if the melon leaf chrysanthemum has not yet budded and blossomed, it can be sprayed with 2000 times dicofol emulsion or 40% omethoate 1000 times every 7 days, a total of 2-3 times, the effect is better; if the melon leaf chrysanthemum has budded and flowered, in order to avoid flower sensitivity, try not to spray pesticides. It can be washed with foliar spray or glued with chewing gum to remove insects, and can also be sprayed with the extract of some natural plants such as garlic, onions, pepper and so on after several days of tamping blisters with an appropriate amount of neutral washing powder.

How to cultivate Chrysanthemum morifolium Culture methods and matters needing attention

Melon leaf chrysanthemum must be no stranger to it, now it is distributed in most parts of our country, it is a relatively common flower. Many people buy it because of its high appreciation, but before breeding, people must be most concerned about its breeding skills.

How to raise melon and leaf chrysanthemum

1. Reproduction. Can use the way of sowing, sowing in July-August, provide a temperature of 20-25 ℃, about 10-20 days, slowly sprout, and then change the basin.

2. Soil. Can be mixed with general rotten leaf soil, mud ash mixed with a small amount of sandy soil and a little base fertilizer, to maintain its looseness, not stagnant water.

3. Temperature. To prevent the temperature from being too high in the hot period, the seedlings can survive at 1 ℃ at room temperature if the temperature is controlled at 10-20 ℃ as far as possible. Taking appropriate cooling measures during flowering can prolong the flowering time.

4. Light. During the peak growth period, you should receive sufficient sunlight, moisturize and keep warm, and you can put it indoors when you see the flowers. Do not guarantee that the other three directions outside the north window will receive 4 hours of sunlight. Keep changing the direction of the plant so that it can grow evenly.

Culture method of Chrysanthemum morifolium

1. Light and temperature. It needs sunshine when it grows, and it should not be shaded by the sun, preferably 15 to 20 degrees. If it is higher than 20 degrees, it may only grow. If it is lower than 5 degrees, it will stop growing. Below zero degrees, it is likely to have frost injury. Although it likes warmth, but it can not accept high temperature, from time to time to turn the basin to prevent uneven light, so that the plant type will be correct. A certain amount of light is needed after the flowers have withered before the seeds can develop.

2. Fertilization. Should be given every 7-10 days to add cake fertilizer, the dose should be dilute, chemical fertilizer can also be used. When the bud grows, you can add potassium dihydrogen phosphate until the flower grows.

3. Watering. Its leaves are big and thin and need enough water, but they can't be too wet, as long as the leaves keep growing normally. Usually, you have to wait until the soil is dry and then irrigate, about once every two or three days, and you can also sprinkle the leaves with water. The time of high temperature can increase the frequency of watering.

4. Disease. The plant is vulnerable to red spiders and aphids, so it is necessary to control the environmental conditions, find and dispose of the diseased branches as soon as possible, or spray a little pesticide. If the disease is serious, you can focus on spraying 2000 times dimethoate to the back of the leaves and the top of the chrysanthemum. In addition, other parts are also sprayed.

5. Insect pests. The common insect diseases of melon and leaf chrysanthemum are aphids and red spiders. If the damage to aphids and red spiders is more serious, they can be sprayed with 2000 times dimethoate diluent. Because red spiders generally occur on the back of the leaves, and aphids generally occur on the tender top of the chrysanthemum, spraying should focus on the back of the leaves and the top of the plant, and the front of the leaves should also be sprayed properly.

Points for attention of Chrysanthemum morifolium

Don't sprinkle it directly on the leaves when you fatten it. If you get it, wash it. Don't fatten it during the blooming period. When you grow up, put it in a well-lit area, and you can watch it in the house after growing, but it takes at least four hours of light every day to make the flowers more colorful.

What if the leaves of Chrysanthemum morifolium are gone?

1. Water problem. Solution: therefore, to control the amount of water, do not make the basin soil too dry or stagnant water, so as not to affect the normal growth of leaves.

2. Temperature problem. Solution: be sure to control the temperature, keep it in a cool and ventilated place in spring, summer and autumn, and pay attention to shade in summer.

3. The problem of lighting. Solution: it is best to have 8 hours of sunshine every day, and keep it in a well-ventilated place with scattered light, and prevent insufficient light in rainy and snowy days in winter.

4. Fertilizer problem. Solution: adjust the amount of water, usually apply thin fertilizer for two weeks, mainly phosphorus and potassium fertilizer, plus a small amount of nitrogen fertilizer.

When raising chrysanthemum, we should first understand its growth habits, and then start breeding. When breeding again, we must pay attention to the control of temperature and light, and if it is hot in summer, we must take protective measures to affect the growth on the one hand. In the later stage of culture, it is necessary to strengthen the control of water and fertilizer, so as not to cause the phenomenon of leaves.

Culture method of Chrysanthemum morifolium how to raise Chrysanthemum

There are many varieties of melon leaf chrysanthemum in horticulture. It can be roughly divided into four types: large flower type, star type, intermediate type and multi-flower type, and there are different double petals and different height varieties in different types. Today, let's learn the culture method of melon and leaf chrysanthemum.

Culture methods of Chrysanthemum morifolium

I. Culture methods of Chrysanthemum morifolium

Melon leaf chrysanthemum is a plant of the family Compositae, which was first produced in the Canary Islands, but now it has spread all over the world. It is rich in varieties, including large flower type, small flower type, double flower type and multi-flower type. The colors are red, snow cyan, white, purple, pink, blue and a variety of mixed colors. It can generally grow to 20-70cm tall, with white pilose around the straight stem, large triangular or heart-shaped leaves, and flower clusters formed by flower heads.

1. Melon leaf chrysanthemum seed

When the weather is sunny in spring and the temperature rises slowly, plants can be moved to sunlit places and pollinated by warm winds and insects, which is easy to bear fruit. In April, when the light is strong, some shading measures need to be taken to help bear fruit. It usually ripens in a month and can be picked at the beginning of the white crown at the top of the fruit to prevent the seeds from falling. The collected seeds are sun-dried and packed in paper bags and stored in a well-ventilated and dry place.

Generally, the seeds are sown in the middle of September, and need to be planted twice after growing seedlings, and they should be planted in December. The size of 18-20cm should be selected for pot planting, and then they can blossom in February-March of the second year after cultivation.

2. Culture methods of melon and leaf chrysanthemum.

This kind of plant is suitable for growing in an environment with sufficient warm water, and can tolerate a certain amount of cold. It can be cultivated in cold beds or low temperature spaces. It should be more than 5 ℃ at night, less than 20 ℃ in daytime, and the best temperature range is between 10 and 15 ℃.

The light should be suitable, avoid being too dry and direct light, and have a smooth ventilation environment to keep cool and moist. When in the bud period, to give the plant more than 3 hours of light, so as not to affect flowering, it is best to turn over in the middle period, so as to avoid the phenomenon of partial crown.

The best soil quality is loose, easy to drain, nutrient-rich sandy soil, preferably slightly acidic soil or neutral soil, adding appropriate amount of humus to avoid excessive dryness and waterlogging. Its flowering period is long, usually from December to April of the following year, and from March to April.

Chrysanthemum morifolium

Second, how to raise melon leaf chrysanthemum?

Reproduction: sowing can be used, sowing in July-August, providing a temperature of 20-25 ℃, about 10-20 days, slowly sprouting, and then changing pots.

Soil: general rotten leaf soil and mud ash can be mixed with a small amount of sandy soil and a little base fertilizer to maintain its looseness and no stagnant water.

Temperature: to prevent the temperature from getting too high in the hot period, try to control the temperature at 10-20 ℃, the seedlings can survive at 1 ℃ room temperature, and take appropriate cooling measures when flowering to prolong the flowering time.

Lighting: during the peak growth period, you should receive sufficient sunlight, moisturize and keep warm, and you can put it indoors when you see the flowers. do not guarantee that the other three directions outside the north window will be exposed to sunlight for 4 hours, constantly change the direction of the plant and let it grow evenly.

Moisture: let the soil have a slight sense of wetting, should be irrigated completely at one time, pay attention to the usual drainage, high temperature weather pay attention to the supply of water.

Fertilization: during the growing period, you can apply diluted fertilizer, this process should prevent the fertilizer from touching the leaves, and then spray the new high-fat film through the washing step. Plants in the bud stage can apply Zhuangtiling flowers to make the buds healthy and the flowers more beautiful. Please do not apply fertilizer during the flowering period.

Disease: the plant is vulnerable to red spiders and aphids, so it is necessary to control the environmental conditions, find and dispose of the diseased branches as soon as possible, or spray a little pesticide. If the disease is serious, you can focus on spraying 2000 times dimethoate to the back of the leaves and the top of the chrysanthemum. In addition, other parts are also sprayed.

Melon leaf chrysanthemum language

Third, Guaye Chrysanthemum language

Guaye Chrysanthemum language: when the flowers are in full bloom, there is a scene of prosperity, vitality and prosperity, implying joy, happiness, family happiness, prosperity, wealth and fortune. Because it has the meaning of wealth, wealth and prosperity, some people call it rich chrysanthemum, which is given to relatives and friends during the most important Spring Festival of the year, representing good wishes.

In addition, different colors also have their own flower language, white varieties have a way to draw materials for nobility, blue varieties have the meaning of love, red varieties represent festive auspiciousness, pink varieties symbolize luck, and purple varieties symbolize confusing memories. It is the guardian flower of Sagittarius.

Melon leaf chrysanthemum grows luxuriant stems and cascading leaves, whether it is bleak autumn or hot summer, always green, strong and straight, showing unlimited vitality, implying that no matter how the environment changes, once you strengthen your faith and know what you want to protect, life is always young.

Fourth, what if the leaves of melon and leaf chrysanthemum wilt?

1. The leaves of Chrysanthemum morifolium wilted for the following reasons:

① itself likes a wet environment. Once it is dry, it will wilt leaves, turn yellow and even be invaded by worms.

② light problem, if the sun is too little, the plant immunity is poor, not strong enough, but too strong, it is easy to produce wilting yellow condition.

③ temperature problem, high will accelerate the growth of branches and leaves, is not conducive to flowering, low will slow down the growth, affecting the appearance of leaves.

④ fertilizer problems, improper control of fertilizer application, paint is in the case of poor ventilation, will also cause wilting leaves, or even die.

2. What to do if the leaves of melon and leaf chrysanthemum wilt:

When ① is dry, you can spray water on the surface first, and then pour it through at one time to avoid stagnant water.

② controls the light, puts it in the place of scattered light or takes shade measures, and manually makes up for the deficiency. Adjust the gap between the branches, leaves and plants in the basin in the process of culture, so that each part receives sunlight evenly.

③ adjusts the temperature, generally under the condition of 15-20 ℃.

④ regulates water distribution, usually applying thin fertilizer for two weeks, mainly phosphorus and potassium fertilizer, plus a small amount of nitrogen fertilizer.